Uv lamp control circuit and mosquito killer lamp simulating human body temperature

Abstract

The utility model belongs to the technical field of electronic circuit, disclose a kind of UV lamp control circuit and mosquito killer lamp simulating human body temperature, comprising: control module, temperature sensing module and light emitting module;Light emitting module is connected with first voltage input end, for driving the UV lamp light emitting unit in it to emit light by the input voltage provided by first voltage input end;The wavelength of UV lamp light emitting unit is 365nm to 400nm;Temperature sensing module is connected with first voltage input end and external controller respectively, and temperature sensing module is close to light emitting module, for adjusting the temperature sensing signal output to external controller according to the heating temperature of UV lamp light emitting unit;Control module is connected with external controller and light emitting module respectively, for adjusting the working power of UV lamp light emitting unit according to control signal, and control signal is the drive signal generated by external controller according to temperature sensing signal.The utility model aims at reducing the product cost of supporting mosquito killing function.

Description

Technical Field

[0001] This utility model relates to the field of electronic circuit technology, and in particular to a UV lamp control circuit that simulates human body temperature and a mosquito killer lamp. Background Technology

[0002] In related technologies, mosquito-killing lamps are commonly used in homes to combat mosquito infestations. These lamps typically have a thermal simulation function, attracting and killing mosquitoes by simulating human body temperature. However, current mosquito-killing lamps generally require a heating element to simulate human body temperature, resulting in higher product costs.

[0003] In summary, the technical problems existing in the relevant technologies need to be improved. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a UV lamp control circuit that simulates human body temperature, the circuit comprising: a control module, a temperature sensing module, and a light-emitting module; The light-emitting module is connected to a first voltage input terminal, and the light-emitting module is used to drive the UV lamp light-emitting unit therein to emit light through the input voltage provided by the first voltage input terminal; the wavelength of the UV lamp light-emitting unit is 365nm to 400nm; The temperature sensing module is connected to the first voltage input terminal and the external controller respectively, and the temperature sensing module is close to the light-emitting module. The temperature sensing module is used to adjust the temperature sensing signal output to the external controller according to the heating temperature of the UV lamp light-emitting unit. The control module is connected to the external controller and the light-emitting module respectively. The control module is used to adjust the working power of the UV lamp light-emitting unit according to the control signal, which is the drive signal generated by the external controller based on the temperature sensing signal.

[0005] In some embodiments, the circuit further includes a connector, wherein the first end and the second end of the connector are each provided with three corresponding pins; The UV lamp light-emitting units in the light-emitting module are connected in parallel. The positive terminal of each UV lamp light-emitting unit is connected to the first voltage input terminal and the third pin of the second terminal of the connector, respectively. The negative terminal of each UV lamp light-emitting unit is connected to the second pin of the second terminal of the connector. The temperature sensing module includes a thermistor and a first resistor. One end of the thermistor is connected to the first voltage input terminal, and the other end of the thermistor is connected to the first pin of the second end of the connector. The first pin of the first end of the connector is connected to the first voltage input terminal. One end of the first resistor is connected to the third pin of the first end of the connector and the external controller. The other end of the first resistor is grounded. The thermistor and the first resistor are connected in series through the first voltage input terminal. The control module includes a first MOSFET, a second resistor, a third resistor, and a first capacitor. One end of the second resistor is connected to the external controller, and the other end of the second resistor is connected to the gate of the third resistor and the first MOSFET. The other end of the third resistor is connected to the source of the first MOSFET. The first capacitor is connected in parallel with the third resistor. The drain of the first MOSFET is connected to the second pin of the first end of the connector. The source of the first MOSFET is also grounded.

[0006] In some embodiments, the circuit further includes a current limiting module, which includes a first current limiting resistor equal to the number of UV lamp light-emitting units, wherein the positive terminal of each UV lamp light-emitting unit is connected to the first voltage input terminal through the first current limiting resistor.

[0007] In some embodiments, the temperature sensing module further includes a fourth resistor and a second capacitor, the second capacitor being connected in parallel with the first resistor, and the first resistor being connected to the external controller through the fourth resistor.

[0008] In some embodiments, the circuit further includes a connector, wherein the first end and the second end of the connector are each provided with three corresponding pins; The UV lamp light-emitting units in the light-emitting module are connected in series. A group of UV lamp light-emitting units connected in series is defined as a light-emitting unit group. The positive terminal of the light-emitting unit group is connected to the third pin of the second end of the connector, the negative terminal of the light-emitting unit group is connected to the second pin of the second end of the connector, and the second pin of the first end of the connector is grounded. The temperature sensing module includes a thermistor and a fifth resistor. One end of the thermistor is connected to the second pin of the second end of the connector, and the other end of the thermistor is connected to the first pin of the second end of the connector. The second pin of the second end of the connector is also grounded. One end of the fifth resistor is connected to the third pin of the first end of the connector and the external controller. The fifth resistor is connected to the first voltage input terminal. The thermistor and the fifth resistor are connected in series through the third pin. The control module includes a transistor, a second MOSFET, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a third capacitor. One end of the sixth resistor is connected to the external controller, and the other end of the sixth resistor is connected to the seventh resistor and the base of the transistor. The other end of the seventh resistor is connected to the emitter of the transistor. The third capacitor is connected in parallel with the seventh resistor. The emitter of the transistor is also grounded. The collector of the transistor is connected to the eighth resistor. The other end of the eighth resistor is connected to the gate of the second MOSFET. The source of the second MOSFET is connected to the second voltage input terminal. The drain of the second MOSFET is connected to the first pin of the first end of the connector. The ninth resistor is connected between the gate and the source of the second MOSFET.

[0009] In some embodiments, the circuit further includes a current limiting module, which includes a second current limiting resistor and a third current limiting resistor connected in parallel, and the positive terminal of the light-emitting unit group is connected to the third pin of the second end of the connector through the current limiting module.

[0010] In some embodiments, the temperature sensing module further includes a tenth resistor and a fourth capacitor, the fourth capacitor being connected in parallel with the fifth resistor, and the fifth resistor being connected to the external controller through the tenth resistor.

[0011] In some embodiments, the light-emitting module includes a plurality of light-emitting unit groups connected in parallel, the positive terminal of each light-emitting unit group being connected to the third pin of the second end of the connector, and the negative terminal of each light-emitting unit group being connected to the second pin of the second end of the connector.

[0012] In some embodiments, the external controller is a microcontroller.

[0013] To achieve the above objectives, another aspect of the embodiments of this application provides a mosquito-killing lamp, which includes the circuit described in any of the preceding claims.

[0014] The beneficial effects of this invention are as follows: A UV lamp control circuit and mosquito killer lamp simulating human body temperature are designed, including a control module, a temperature sensing module, and a light-emitting module. The light-emitting module is connected to a first voltage input terminal and is used to drive the UV lamp light-emitting unit in the light-emitting module to emit light through the input voltage provided by the first voltage input terminal. The wavelength of the UV lamp light-emitting unit is 365nm to 400nm, so that its temperature during emission can support the simulation of human body temperature. On the other hand, the temperature sensing module is close to the light-emitting module and adjusts the temperature sensing signal output to the external controller according to its heating temperature. The control module then generates a control signal based on the feedback of the temperature sensing signal from the external controller, adjusts the duty cycle, and thereby adjusts the working power of the UV lamp light-emitting unit to stabilize it at a working power that can simulate human body temperature during emission, thus achieving the effect of attracting mosquitoes. Compared with the need to configure an additional heating unit to simulate human body temperature to attract mosquitoes, the solution of this application directly utilizes the heat generated by the light-emitting unit during emission, making the heating temperature simulate human body temperature, thus achieving the effect of attracting mosquitoes and reducing product costs. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of the framework of a UV lamp control circuit for simulating human body temperature provided for an embodiment of this utility model; Figure 2 A circuit diagram of a first embodiment of a UV lamp control circuit for simulating human body temperature provided by this utility model; Figure 3 A circuit diagram of a second embodiment of a UV lamp control circuit for simulating human body temperature provided by this utility model; Figure 4 This is a circuit diagram of a third embodiment of a UV lamp control circuit that simulates human body temperature, provided as an example of this utility model.

[0016] In the diagram: light-emitting module 100, temperature sensing module 200, control module 300, thermistor RT1, first resistor R1, second resistor R2, third resistor R3, fourth resistor R4, fifth resistor R5, sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, tenth resistor R10, first capacitor C1, second capacitor C2, third capacitor C3, fourth capacitor C4, transistor Q1, first MOSFET M1, second MOSFET M2, connector first terminal CN1, connector second terminal CN2, first voltage input terminal DC1, second voltage input terminal DC2. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] In related technologies, mosquito-killing lamps are commonly used in homes to combat mosquito infestations. These lamps typically have a thermal simulation function, attracting and killing mosquitoes by simulating human body temperature. However, current mosquito-killing lamps generally require a heating element to simulate human body temperature, resulting in higher product costs.

[0019] In view of this, this application provides a UV lamp control circuit that simulates human body temperature. Figure 1 This is a schematic diagram of the framework of a UV lamp control circuit that simulates human body temperature, provided in an embodiment of this application. Figure 1 The UV lamp control circuit that simulates human body temperature may include, but is not limited to: control module 300, temperature sensing module 200 and light-emitting module 100.

[0020] The light-emitting module 100 is connected to the first voltage input terminal DC1, and the light-emitting module 100 is used to drive the UV lamp light-emitting unit therein through the input voltage provided by the first voltage input terminal DC1. Figure 1 (Not shown) emits light; the wavelength of the UV lamp emitting unit is 365nm to 400nm.

[0021] The temperature sensing module 200 is connected to the first voltage input terminal DC1 and the external controller respectively, and the temperature sensing module 200 is close to the light-emitting module 100. The temperature sensing module 200 is used to adjust the temperature sensing signal output to the external controller according to the heating temperature of the UV lamp light-emitting unit.

[0022] The control module 300 is connected to the external controller and the light-emitting module 100 respectively. The control module 300 is used to adjust the working power of the UV lamp light-emitting unit according to the control signal. The control signal is the drive signal generated by the external controller based on the temperature sensing signal.

[0023] Specifically, the UV lamp light-emitting unit is a lamp that emits ultraviolet light. By setting its wavelength to 365nm to 400nm, it retains its mosquito-killing ability while also simulating human body temperature through heat generation, thus replacing the need for a separate heating unit. Regarding the heat generation of the UV lamp light-emitting unit, the heat is actually generated by the copper foil and substrate on the PCB board. The copper foil and substrate also act as heat dissipation components. Therefore, by controlling the appropriate duty cycle, the temperature of the UV lamp light-emitting unit can be stabilized close to human body temperature, thereby achieving the effect of simulating human body temperature.

[0024] In the circuit design, the temperature sensing element in the temperature sensing module 200 is located close to the light-emitting module 100, which is more conducive to detecting the heating temperature of the UV lamp light-emitting unit, thereby adjusting the temperature sensing signal. The attached figure shows the temperature sensing signal output to the external controller as an NTC. Figure 1 The dashed line and the label "Temp" indicate that the light-emitting module 100 affects the temperature sensing module 200 through temperature. The external controller is configured to determine the actual temperature value of the heating element based on the received temperature sensing signal, and then determine how to adjust the control module 300 to regulate the duty cycle of the UV lamp light-emitting unit based on this actual temperature value. The controller then outputs a corresponding control signal to the control module 300. The control signal input from the external controller is indicated by "UVON" in the attached diagram.

[0025] This embodiment designs a UV lamp control circuit and mosquito killer lamp that simulates human body temperature. The circuit includes a control module 300, a temperature sensing module 200, and a light-emitting module 100. The light-emitting module 100 is connected to a first voltage input terminal DC1, which drives the UV lamp light-emitting unit within the module to emit light using the input voltage provided by DC1. The wavelength of the UV lamp light-emitting unit is 365nm to 400nm, ensuring its emission temperature can simulate human body temperature. Meanwhile, the temperature sensing module 200 is located near the light-emitting module 100 and adjusts the temperature sensing signal output to an external controller based on the lamp's heating temperature. The control module 300, through the external controller, adjusts the duty cycle based on the control signal generated by the temperature sensing signal, thereby regulating the operating power of the UV lamp light-emitting unit to stabilize it at a power level that simulates human body temperature, thus attracting mosquitoes. Compared to requiring an additional heating unit to simulate human body temperature for mosquito attraction, this solution directly utilizes the heat generated by the light-emitting unit during emission, achieving a heating temperature that simulates human body temperature and reducing product costs.

[0026] refer to Figure 2 In some embodiments, the circuit also includes a connector, with three corresponding pins at both the first and second ends of the connector.

[0027] The UV lamp light-emitting units in the light-emitting module 100 are connected in parallel. The positive terminal of each UV lamp light-emitting unit is connected to the first voltage input terminal DC1 and the third pin of the second terminal CN2 of the connector, respectively. The negative terminal of each UV lamp light-emitting unit is connected to the second pin of the second terminal CN2 of the connector.

[0028] The temperature sensing module 200 includes a thermistor RT1 and a first resistor R1. One end of the thermistor RT1 is connected to the first voltage input terminal DC1, and the other end of the thermistor RT1 is connected to the first pin of the second terminal CN2 of the connector. The first pin of the first terminal CN1 of the connector is connected to the first voltage input terminal DC1. One end of the first resistor R1 is connected to the third pin of the first terminal CN1 of the connector and an external controller, respectively. The other end of the first resistor R1 is grounded. The thermistor RT1 and the first resistor R1 are connected in series through the first voltage input terminal DC1.

[0029] The control module 300 includes a first MOSFET M1, a second resistor R2, a third resistor R3, and a first capacitor C1. One end of the second resistor R2 is connected to an external controller, and the other end of the second resistor R2 is connected to the gate of the third resistor R3 and the first MOSFET M1, respectively. The other end of the third resistor R3 is connected to the source of the first MOSFET M1. The first capacitor C1 is connected in parallel with the third resistor R3. The drain of the first MOSFET M1 is connected to the second pin of the first terminal CN1 of the connector. The source of the first MOSFET M1 is also grounded.

[0030] To achieve the mosquito-killing effect required by the product, the light-emitting module 100 is equipped with more than one UV lamp light-emitting unit; this embodiment does not limit the number of UV lamp light-emitting units. Regarding the connection method of the UV lamp light-emitting units, in this embodiment, the various UV lamp light-emitting units are connected in parallel. Figure 2 Only two UV lamp light-emitting units (LED1 and LED2) are shown in the diagram. Power is supplied to them uniformly through the first voltage input terminal DC1, which can be set to 5V.

[0031] On the other hand, the circuit also includes connectors. Each connector has three corresponding pins on its first end CN1 and second end CN2. These corresponding pins are connected; for example, the first pin of the first end CN1 is connected to the first pin of the second end CN2. The connectors allow for flexible circuit layout based on actual needs. For instance, the thermistor RT1 can be positioned close to the UV lamp light-emitting unit to detect its heating temperature.

[0032] The thermistor RT1 serves as the actual element for sensing the heating temperature. Its resistance changes according to the temperature change, and together with the first resistor R1 connected in series, it controls the temperature sensing signal to reflect the temperature change. This allows the external controller to determine the heating temperature based on the temperature sensing signal, and then output a control signal to adjust the duty cycle of the first MOSFET M1, thus achieving closed-loop control of the circuit.

[0033] By setting the UV lamp light-emitting units to be connected in parallel and using devices such as thermistor RT1 and first MOSFET M1 for closed-loop control, the function of simulating human body temperature by utilizing the heating temperature of the UV lamp light-emitting units can be realized, thereby reducing product costs.

[0034] Based on the above embodiments, refer to Figure 2 In some embodiments, the circuit further includes a current limiting module, which includes a first current limiting resistor equal to the number of UV lamp light-emitting units. The positive terminal of each UV lamp light-emitting unit is connected to a first voltage input terminal DC1 through the first current limiting resistor.

[0035] To more precisely control the operating power of the UV lamp light-emitting units, a current-limiting module is provided for the light-emitting module 100. Since the UV lamp light-emitting units in the above embodiment are connected in parallel, a corresponding current-limiting resistor can be set for each branch of the UV lamp light-emitting unit, all defined as the first current-limiting resistor. Since the number of UV lamp light-emitting units is not limited, Figure 2 The diagram only shows two first current-limiting resistors (R11 and R12) corresponding to two of the UV lamp light-emitting units (including LED1 and LED2), respectively. Each first current-limiting resistor has the same resistance value to help control the operating power of the UV lamp light-emitting unit.

[0036] Based on the above embodiments, refer to Figure 2 In some embodiments, the circuit further includes a fourth resistor R4 and a second capacitor C2, the second capacitor C2 being connected in parallel with the first resistor R1, and the first resistor R1 being connected to an external controller through the fourth resistor R4.

[0037] Optionally, the temperature sensing module 200 may also include a fourth resistor R4 and a second capacitor C2. Compared with the original thermistor RT1 and the first resistor R1, the fourth resistor R4 and the second capacitor C2 play a filtering role on the temperature sensing signal, thereby improving the accuracy of the temperature sensing signal.

[0038] refer to Figure 3 In some embodiments, the circuit also includes a connector, with three corresponding pins at both the first and second ends of the connector.

[0039] The UV lamp light-emitting units in the light-emitting module 100 are connected in series. Several UV lamp light-emitting units connected in series are defined as a light-emitting unit group. The positive terminal of the light-emitting unit group is connected to the third pin of the second end CN2 of the connector, the negative terminal of the light-emitting unit group is connected to the second pin of the second end CN2 of the connector, and the second pin of the first end CN1 of the connector is grounded.

[0040] The temperature sensing module 200 includes a thermistor RT1 and a fifth resistor R5. One end of the thermistor RT1 is connected to the second pin of the second terminal CN2 of the connector, and the other end of the thermistor RT1 is connected to the first pin of the second terminal CN2 of the connector. The second pin of the second terminal CN2 of the connector is also grounded. One end of the fifth resistor R5 is connected to the third pin of the first terminal CN1 of the connector and an external controller. The fifth resistor R5 is connected to the first voltage input terminal DC1. The thermistor RT1 and the fifth resistor R5 are connected in series through the third pin.

[0041] The control module 300 includes a transistor Q1, a second MOSFET M2, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a third capacitor C3. One end of the sixth resistor R6 is connected to an external controller, and the other end of the sixth resistor R6 is connected to the base of the seventh resistor R7 and the transistor Q1. The other end of the seventh resistor R7 is connected to the emitter of the transistor Q1. The third capacitor C3 is connected in parallel with the seventh resistor R7. The emitter of the transistor Q1 is also grounded. The collector of the transistor Q1 is connected to the eighth resistor R8. The other end of the eighth resistor R8 is connected to the gate of the second MOSFET M2. The source of the second MOSFET M2 is connected to the second voltage input terminal DC2. The drain of the second MOSFET M2 is connected to the first pin of the first terminal CN1 of the connector. The ninth resistor R9 is connected between the gate and the source of the second MOSFET M2.

[0042] Optionally, the multiple UV lamp light-emitting units in the light-emitting module 100 can also be configured to be connected in series, and the multiple UV lamp light-emitting units connected in series in the same branch are defined as the light-emitting unit group. Figure 3 Only two UV lamp light-emitting units (including LED3 and LED4) are shown in the diagram. Unlike the parallel connection described above, the UV lamp light-emitting units in the light-emitting unit group have the same orientation, so the positive and negative terminals of the light-emitting unit group can be determined, and they are driven to emit light through the first voltage input terminal DC1 on the first end CN1 side of the connector.

[0043] On the other hand, due to the difference between series connection and parallel connection, the control module 300 is set to be controlled by the second MOSFET M2 and the transistor Q1 in concert. At the same time, the second voltage input terminal DC2 is introduced to control the conduction of the second MOSFET M2. The second voltage input terminal DC2 can be set to 12V, so that the control module 300 can still adjust the duty cycle according to the control signal, affecting the working power of the multiple UV lamp light-emitting units connected in series.

[0044] By setting the UV lamp light-emitting units to be connected in series and using devices such as thermistor RT1, transistor Q1, and second MOSFET M2 for closed-loop control, the function of simulating human body temperature by utilizing the heating temperature of the UV lamp light-emitting units can be realized, thereby reducing product costs.

[0045] refer to Figure 4 In some embodiments, the light-emitting module 100 includes multiple light-emitting unit groups connected in parallel. The positive terminal of each light-emitting unit group is connected to the third pin of the second end CN2 of the connector, and the negative terminal of each light-emitting unit group is connected to the second pin of the second end CN2 of the connector.

[0046] Optionally, the UV lamp light-emitting units can also be configured with a hybrid series and parallel connection. Since a light-emitting unit group includes multiple UV lamp light-emitting units connected in series, multiple light-emitting unit groups can be set up, with the light-emitting unit groups connected in parallel with each other. Figure 4 The diagram illustrates a group consisting of LED3 and LED4, and another group consisting of LED5 and LED6. The positive terminal of each parallel light-emitting unit group is connected to the third pin of the second end CN2 of the connector to obtain power, thus forming a hybrid series and parallel connection to provide more diverse connection methods to meet the actual use needs of the product.

[0047] Based on the above embodiments, refer to Figure 3 , 4 In some embodiments, the circuit further includes a current limiting module, which includes a second current limiting resistor and a third current limiting resistor connected in parallel. The positive terminal of the light-emitting unit group is connected to the third pin of the second terminal CN2 of the connector through the current limiting module.

[0048] A current-limiting module can be set for the light-emitting module 100 to more accurately control the operating power of the UV lamp light-emitting unit. Since the UV lamp light-emitting units in the above embodiment are connected in series, a current-limiting module can be directly set for the light-emitting unit group. The second current-limiting resistor and the third current-limiting resistor are connected in parallel to form the current-limiting module, which is connected between the positive terminal of the light-emitting unit group and the third pin of the second terminal CN2 of the connector to achieve the current-limiting function. If the UV lamp light-emitting units are set to a mixed series and parallel connection form, and include multiple light-emitting unit groups, then a second current-limiting resistor (including R13 and R15) and a third current-limiting resistor (including R14 and R16) connected in parallel are set on each branch of the light-emitting unit group.

[0049] Based on the above embodiments, refer to Figure 3 , 4 In some embodiments, the circuit further includes a tenth resistor R10 and a fourth capacitor C4, the fourth capacitor C4 being connected in parallel with a fifth resistor R5, and the fifth resistor R5 being connected to an external controller through the tenth resistor R10.

[0050] Similarly, for the circuit where the UV lamp light-emitting units are connected in series, a tenth resistor R10 and a fourth capacitor C4 can be set in the temperature sensing module 200 to filter the temperature sensing signal, thereby achieving the filtering effect.

[0051] In some embodiments, the external controller is a microcontroller.

[0052] Optionally, the external controller may be a microcontroller configured to detect the specific heating temperature based on the temperature sensing signal, generate and output a corresponding control signal based on the heating temperature, and finally adjust the heating temperature of the UV lamp light-emitting unit to simulate human body temperature.

[0053] This application also provides a mosquito killer lamp, which includes a UV lamp control circuit that simulates human body temperature as described in any of the above embodiments.

[0054] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0055] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0056] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A UV lamp control circuit that simulates human body temperature, characterized in that, The circuit includes a control module, a temperature sensing module, and a light-emitting module; The light-emitting module is connected to the first voltage input terminal, and the light-emitting module is used to drive the UV lamp light-emitting unit therein to emit light through the input voltage provided by the first voltage input terminal; The wavelength of the UV lamp light-emitting unit is 365nm to 400nm; The temperature sensing module is connected to the first voltage input terminal and the external controller respectively, and the temperature sensing module is close to the light-emitting module. The temperature sensing module is used to adjust the temperature sensing signal output to the external controller according to the heating temperature of the UV lamp light-emitting unit. The control module is connected to the external controller and the light-emitting module respectively. The control module is used to adjust the working power of the UV lamp light-emitting unit according to the control signal, which is the drive signal generated by the external controller based on the temperature sensing signal.

2. The circuit according to claim 1, characterized in that, The circuit also includes a connector, and the first and second ends of the connector are each provided with three corresponding pins; The UV lamp light-emitting units in the light-emitting module are connected in parallel. The positive terminal of each UV lamp light-emitting unit is connected to the first voltage input terminal and the third pin of the second terminal of the connector, respectively. The negative terminal of each UV lamp light-emitting unit is connected to the second pin of the second terminal of the connector. The temperature sensing module includes a thermistor and a first resistor. One end of the thermistor is connected to the first voltage input terminal, and the other end of the thermistor is connected to the first pin of the second end of the connector. The first pin of the first end of the connector is connected to the first voltage input terminal. One end of the first resistor is connected to the third pin of the first end of the connector and the external controller. The other end of the first resistor is grounded. The thermistor and the first resistor are connected in series through the first voltage input terminal. The control module includes a first MOSFET, a second resistor, a third resistor, and a first capacitor. One end of the second resistor is connected to the external controller, and the other end of the second resistor is connected to the gate of the third resistor and the first MOSFET. The other end of the third resistor is connected to the source of the first MOSFET. The first capacitor is connected in parallel with the third resistor. The drain of the first MOSFET is connected to the second pin of the first end of the connector. The source of the first MOSFET is also grounded.

3. The circuit according to claim 2, characterized in that, The circuit also includes a current limiting module, which includes a first current limiting resistor in the same number as the number of UV lamp light-emitting units. The positive terminal of each UV lamp light-emitting unit is connected to the first voltage input terminal through the first current limiting resistor.

4. The circuit according to claim 2, characterized in that, The temperature sensing module also includes a fourth resistor and a second capacitor, the second capacitor being connected in parallel with the first resistor, and the first resistor being connected to the external controller through the fourth resistor.

5. The circuit according to claim 1, characterized in that, The circuit also includes a connector, and the first and second ends of the connector are each provided with three corresponding pins; The UV lamp light-emitting units in the light-emitting module are connected in series. A group of UV lamp light-emitting units connected in series is defined as a light-emitting unit group. The positive terminal of the light-emitting unit group is connected to the third pin of the second end of the connector, the negative terminal of the light-emitting unit group is connected to the second pin of the second end of the connector, and the second pin of the first end of the connector is grounded. The temperature sensing module includes a thermistor and a fifth resistor. One end of the thermistor is connected to the second pin of the second end of the connector, and the other end of the thermistor is connected to the first pin of the second end of the connector. The second pin of the second end of the connector is also grounded. One end of the fifth resistor is connected to the third pin of the first end of the connector and the external controller. The fifth resistor is connected to the first voltage input terminal. The thermistor and the fifth resistor are connected in series through the third pin. The control module includes a transistor, a second MOSFET, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a third capacitor. One end of the sixth resistor is connected to the external controller, and the other end of the sixth resistor is connected to the seventh resistor and the base of the transistor. The other end of the seventh resistor is connected to the emitter of the transistor. The third capacitor is connected in parallel with the seventh resistor. The emitter of the transistor is also grounded. The collector of the transistor is connected to the eighth resistor. The other end of the eighth resistor is connected to the gate of the second MOSFET. The source of the second MOSFET is connected to the second voltage input terminal. The drain of the second MOSFET is connected to the first pin of the first end of the connector. The ninth resistor is connected between the gate and the source of the second MOSFET.

6. The circuit according to claim 5, characterized in that, The circuit also includes a current limiting module, which includes a second current limiting resistor and a third current limiting resistor connected in parallel. The positive terminal of the light-emitting unit group is connected to the third pin of the second end of the connector through the current limiting module.

7. The circuit according to claim 5, characterized in that, The temperature sensing module also includes a tenth resistor and a fourth capacitor. The fourth capacitor is connected in parallel with the fifth resistor, and the fifth resistor is connected to the external controller through the tenth resistor.

8. The circuit according to claim 5, characterized in that, The light-emitting module includes multiple light-emitting unit groups connected in parallel. The positive terminal of each light-emitting unit group is connected to the third pin of the second end of the connector, and the negative terminal of each light-emitting unit group is connected to the second pin of the second end of the connector.

9. The circuit according to claim 2 or 5, characterized in that, The external controller is a microcontroller.

10. A mosquito-killing lamp, characterized in that, The mosquito-killing lamp includes a UV lamp control circuit that simulates human body temperature, as described in any one of claims 1 to 9.

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